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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/renderer/print_web_view_helper.h" | 5 #include "chrome/renderer/print_web_view_helper.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "chrome/common/render_messages.h" | 8 #include "chrome/common/render_messages.h" |
9 #include "skia/ext/vector_canvas.h" | 9 #include "skia/ext/vector_canvas.h" |
10 #include "webkit/api/public/WebFrame.h" | 10 #include "webkit/api/public/WebFrame.h" |
11 | 11 |
12 using WebKit::WebFrame; | 12 using WebKit::WebFrame; |
13 | 13 |
14 void PrintWebViewHelper::Print(WebFrame* frame, bool script_initiated) { | 14 void PrintWebViewHelper::Print(WebFrame* frame, bool script_initiated) { |
15 // If still not finished with earlier print request simply ignore. | 15 // If still not finished with earlier print request simply ignore. |
16 if (IsPrinting()) | 16 if (IsPrinting()) |
17 return; | 17 return; |
18 | 18 |
19 // TODO(myhuang): Get printing parameters via IPC. | 19 // TODO(myhuang): Get printing parameters via IPC. |
20 // For testing purpose, we hard-coded printing parameters here. | 20 // For testing purpose, we hard-coded printing parameters here. |
21 | 21 |
22 // The paper size is US Letter (8.5 in. by 11 in.). | 22 // The paper size is US Letter (8.5 in. by 11 in.). |
23 // Using default margins: | 23 // Using default margins: |
24 // Left = 0.25 in. | 24 // Left = 0.25 in. |
25 // Right = 0.25 in. | 25 // Right = 0.25 in. |
26 // Top = 0.25 in. | 26 // Top = 0.25 in. |
27 // Bottom = 0.56 in. | 27 // Bottom = 0.56 in. |
28 const int kDPI = 72; | 28 const int kDPI = 72; |
29 const int kWidth = static_cast<int>((8.5-0.25-0.25) * kDPI); | 29 const int kWidth = (8.5-0.25-0.25) * kDPI; |
30 const int kHeight = static_cast<int>((11-0.25-0.56) * kDPI); | 30 const int kHeight = (11-0.25-0.56) * kDPI; |
31 ViewMsg_Print_Params default_settings; | 31 ViewMsg_Print_Params default_settings; |
32 default_settings.printable_size = gfx::Size(kWidth, kHeight); | 32 default_settings.printable_size = gfx::Size(kWidth, kHeight); |
33 default_settings.dpi = kDPI; | 33 default_settings.dpi = kDPI; |
34 default_settings.min_shrink = 1.25; | 34 default_settings.min_shrink = 1.25; |
35 default_settings.max_shrink = 2.0; | 35 default_settings.max_shrink = 2.0; |
36 default_settings.desired_dpi = kDPI; | 36 default_settings.desired_dpi = kDPI; |
37 default_settings.document_cookie = 0; | 37 default_settings.document_cookie = NULL; |
38 default_settings.selection_only = false; | 38 default_settings.selection_only = false; |
39 | 39 |
40 // Calculate the estimated page count. | 40 // Calculate the estimated page count. |
41 PrepareFrameAndViewForPrint prep_frame_view(default_settings, | 41 PrepareFrameAndViewForPrint prep_frame_view(default_settings, |
42 frame, | 42 frame, |
43 frame->view()); | 43 frame->view()); |
44 int expected_pages_count = prep_frame_view.GetExpectedPageCount(); | 44 int expected_pages_count = prep_frame_view.GetExpectedPageCount(); |
45 DCHECK(expected_pages_count); | 45 DCHECK(expected_pages_count); |
46 | 46 |
47 ViewMsg_PrintPage_Params page_params; | 47 ViewMsg_PrintPage_Params page_params; |
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77 skia::VectorCanvas canvas(size_x, size_y); | 77 skia::VectorCanvas canvas(size_x, size_y); |
78 float webkit_shrink = frame->printPage(params.page_number, &canvas); | 78 float webkit_shrink = frame->printPage(params.page_number, &canvas); |
79 if (shrink <= 0) { | 79 if (shrink <= 0) { |
80 NOTREACHED() << "Printing page " << params.page_number << " failed."; | 80 NOTREACHED() << "Printing page " << params.page_number << " failed."; |
81 } else { | 81 } else { |
82 // Update the dpi adjustment with the "page shrink" calculated in webkit. | 82 // Update the dpi adjustment with the "page shrink" calculated in webkit. |
83 shrink /= webkit_shrink; | 83 shrink /= webkit_shrink; |
84 } | 84 } |
85 } | 85 } |
86 | 86 |
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